1
BCentral Mystic Lake
Scott County, Minnesota · 1.4 mi from East Arctic Lake
- +Two grade letters higher (F → B)
- +Lower phosphorus (42 vs 94.5 µg/L)
Cleaner Lakes Than East Arctic Lake
4 higher-graded lakes within 30 miles, ranked by grade improvement and proximity.
East Arctic Lake carries a Grade F (Very Poor) water quality score. Within 30 miles, 4 lakes hold a higher grade. Central Mystic Lake (Scott County, Grade B, 1.4 mi away) is the closest meaningful upgrade.
2
BLower Prior Lake
Scott County, Minnesota · 2.2 mi from East Arctic Lake
- +Two grade letters higher (F → B)
- +Lower phosphorus (26.8 vs 94.5 µg/L)
3
CSpring Lake
Scott County, Minnesota · 1.4 mi from East Arctic Lake
- +Two grade letters higher (F → C)
- +Lower phosphorus (41.9 vs 94.5 µg/L)
4
CUpper Prior Lake
Scott County, Minnesota · 0.6 mi from East Arctic Lake
- +Two grade letters higher (F → C)
- +Lower phosphorus (32.7 vs 94.5 µg/L)
How this list is built
Every lake on LakeQuality has a calculated grade from EPA Water Quality Portal samples — secchi depth, total phosphorus, and chlorophyll-a measured against Metropolitan Council thresholds. To suggest cleaner alternatives, we filter lakes within 30 miles to those with a strictly higher numeric score, then rank by grade improvement with a small proximity tiebreak. Cross-state and limited-data lakes are excluded so the list stays locally relevant.